Bloop

Snakedoctor · 17 Dec 2008 at 15:29

Might be quite old, but interesting all the same:

The Bloop is the name given to an ultra-low frequency underwater sound detected by the U.S. National Oceanic and Atmospheric Administration several times during the summer of 1997. The source of the sound remains unknown.

The sound, traced to somewhere around 50° S 100° W (South American southwest coast), was detected repeatedly by the Equatorial Pacific Ocean autonomous hydrophone array, which uses U.S. Navy equipment originally designed to detect Soviet submarines. According to the NOAA description, it "rises rapidly in frequency over about one minute and was of sufficient amplitude to be heard on multiple sensors, at a range of over 5,000 km." According to scientists who have studied the phenomenon it matches the audio profile of a living creature but there is no known animal that could have produced the sound. If it is an animal, it would have to be, reportedly, much larger than even a Blue Whale, the largest known animal on the earth.

http://en.wikipedia.org/wiki/Bloop

Snakedoctor · 17 Dec 2008 at 16:03

It's the Cloverfield monster!

Snakedoctor · 17 Dec 2008 at 17:27

Ciphon said:
I reckon it is some huge underwater elephant type thing... I love things like this... it certainly does make you wonder...

I feel certain this is the truth. Perhaps if we make a trunk call we can find out?

Seriously, where did you get that idea from?

Snakedoctor · 17 Dec 2008 at 19:26

-Exodus- said:
ManBearPig

/thread

No, this is totally serial.

Snakedoctor · 23 Jan 2013 at 23:24

Sorry for the revival but I thought I should put you out of your misery.

http://www.pmel.noaa.gov/vents/acoustics/sounds/bloop.html

Icequakes (Bloop)

The broad spectrum sounds recorded in the summer of 1997 are consistent with icequakes generated by large icebergs as they crack and fracture. NOAA hydrophones deployed in the Scotia Sea detected numerous icequakes with spectrograms very similar to “Bloop”. The icequakes were used to acoustically track iceberg A53a as it disintegrated near South Georgia Island in early 2008. Icequakes are of sufficient amplitude to be detected on multiple sensors at a range of over 5000 km. Based on the arrival azimuth, the iceberg(s) generating “Bloop” most likely were between Bransfield Straits and the Ross Sea, or possibly at Cape Adare, a well know source of cryogenic signals.